Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"mine planning"”.
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Conceptual mine planning with interative computer graphics
Includes bibliographical references.
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Open-pit mine planning with operational constraints
Open-pit mines must be designed to develop the Earth’s natural resources in the most responsible, sustainable, and economic way. Traditional mine planning optimization methods do not consider operational constraints; such as minimum mining width or minimum pushback width constraints, and often do …
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Quantification of uncertainty of geometallurgical variables for mine planning optimisation
… years or so because of the benefits it brings to mine planning and operation. Its use and integration into design, planning and operation is becoming increasingly critical especially in the context of declining ore grades and increasing mining and processing costs. This thesis, comprising four …
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An integrated computer simulator for surface mine planning and design
In the increasingly competitive coal market, it is becoming more important for coal operators to develop mathematical models for surface mining which can estimate mining costs before the actual mining begins. The problem becomes even more acute with the new reclamation laws, as they affect surface …
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The Integration of a Coal Mine Emergency Communication Network into Pre-Mine Planning and Development
Regulations, such as the MINER Act of 2006, require the installation of redundant and secondary communication systems to assure that contact can be established with coal miners who may become trapped underground as a result of an event such as a fire, explosion, or inundation. For half a century, …
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Application of Measurement While Drilling Data for Mine Blast Optimization Utilizing Machine Learning Techniques with Iron Ore Mine Data
… and blasting procedures are a critical part of mine planning activities and improvements in this stage can lead to better productivity downstream and lower costs. One potential improvement would be better understanding the characteristics of the rock for blast design purposes. The distribution …
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Synthetic High Resolution Block Model for Benchmarking Mining Technologies
… associated with their estimation in the blocks mined and processed becloud the decision making in the mining value chain. In addition to grades of elements and minerals of interest, the presence of deleterious materials, as well as varying geometallurgical properties of rock materials have …
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Three dimensional quantitative textural analysis of nickel sulphide ore using X-ray computed tomography and grey level co-occurrence matrices on drill core
Alongside the global trend to mine and process lower grade and more mineralogically complex ores, there has been an increased awareness of the prevalence of ore heterogeneity. Ore texture - the interrelationship of minerals comprising a rock, has been identified as one of the primary …
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An application of 3-D modeling and optimization of the final pit limits for a lignite deposit
… algorithms have been developed in order to determine the optimal final limits of an open pit mine. Due to the complex nature of this problem, however, very few of them can offer a reliable and complete answer. The case of an actual lignite deposit was used in this study, which enabled an …
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A geological study of the River Ranch kimberlite pipe and associated diamonds and mantle minerals : Limpopo Mobile Belt, Zimbabwe
… particularly variations in groundmass mineralogy. Subsequent to emplacement, the diatreme has been cut by intrusive tholeitic dolerites of apparently Karoo age. The River Ranch occurrence is classified as a Group I kimberlite although the definitive isotopic evidence is lacking due to …
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Analysis and Application of Coal Seam Seismic Waves for detection of Abandoned Mines
… in the proximity of abandoned underground mines that are prone to accumulate water, methane or other toxic gases, and are often either poorly mapped or without good surface survey control. Mining into such abandoned voids poses a great safety risk to personnel, equipment, and production …
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Integrating Laser Scanning with Discrete Element Modeling for Improving Safety in Underground Stone Mines
According to the Mine Health and Safety Administration (MSHA), between 2006 and 2016, the underground stone mining industry had the highest fatality rate in 4 out of 10 years, compared to any other type of mining in the United States. Additionally, the National Institute for Occupational Safety and …
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Plurigaussian Simulation of rocktypes using data from a gold mine in Western Australia
… economically appropriate decisions regarding mine planning. This thesis analyses the suitability of particular geostatistical rock type modelling algorithms when applied to the five rocktypes evident in drill hole data from the Big Bell gold mine near Cue, Western Australia. The background of …
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Geomechanical behaviour and deformation of coal mine roof strata around faults: toward an engineering geological model
… mass condition are important prerequisites for mine planning and risk management in underground coal mines. In longwall mines in particular, evaluating and predicting geomechanical features and rock conditions ahead of mining is critically important because panel extraction is somewhat …
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Surface Water Impacts from Active Underground Mining
… Typical analytical and empirical methods used in mine planning were compared against SDPS methods to ensure the validity and advantage to the use of SDPS for this purpose. Finally, underground mining effects on stream chemistry and health were explored by studying the heavily mined and …
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The simulation of material types in a Western Australian iron deposit
… are currently used by mining companies to determine a resource model of the tonnage and head grade that may be obtained from a potential orebody, making it one of the first and most vital operational stages in any mining project. Currently long term mine planning is based on the estimated head …
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Applications of Surface and Subsurface Subsidence Theories to Solve Ground Control Problems
The stability of the underground mine openings largely depends on the surrounding ground conditions, such as stress concentrations, geological conditions and support intensities etc. In particular, the ground control stability associated with large movements and deformations of the strata is much …
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Optimizing Pillar Design for Improved Stability and Enhanced Production in Underground Stone Mines
… and improving production in room-and-pillar mines. Maintaining regional and global stability is complicated for underground carbonate or stone deposits, where extensive fracture networks and groundwater flow become leading factors for generating unsteady ground conditions including karsts. A …
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Predicting mining company-stakeholder conflict and incorporating social conditions into mining project valuation
… are becoming increasingly involved in mine design and permitting decision-making. Yet, the systems in which mining investment decisions take place do not fully capture the importance of stakeholder influence on the success or failure of a mining venture. Conventional mine planning and …